Carolyn Lochhead of the San Francisco Chronicle offers this: Sen. Barack Obama easily won the African American vote in South Carolina, but to woo California Latinos, where he is running 3-to-1 behind rival Sen. Hillary Rodham Clinton, he is taking a giant risk: spotlighting his support for the red-hot issue of granting driver's licenses to illegal immigrants. It's a huge issue for Latinos, who want them. It's also a huge issue for the general electorate, which most vehemently does not. Obama's stand could come back to haunt him not only in a general election, but with other voters in...